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SwiftPM dependency resolution over SSH failed in Xcode 11

ahvth-bitrise
  • Updated

Issue:

The Xcode Archive & Export for iOS Step failed with the following error:

xcodebuild: error: Could not resolve package dependencies:
 The server SSH fingerprint failed to verify.

Possible solutions:

This error is related to an ongoing bug in Xcode 11. The issue is that SwiftPM dependencies cannot be resolved over SSH without first adding the dependency host to the ~/.ssh/known_hosts file.

To do this, add a Script Step to your Workflow at the point before the dependency is pulled.

ssh-keyscan -H <host> >> ~/.ssh/known_hosts

You have to replace <host> with the host of the repo (eg. github.com) that you want to pull from.

Additional information:

The bug is documented in the Xcode 11 Release Notes.